﻿using System;
using System.Collections.Generic;
using System.Text;
using System.IO;

namespace HelloWorld
{
    public class HelloWorldApp
    {
        TextWriter _writer;

        public HelloWorldApp(TextWriter w)
        {
            _writer = w;
        }

        public void go()
        {
            _writer.WriteLine("Hello World");
        }
    }
}
